You are the Guesser being evaluated in a Twenty Questions benchmark. One subject is hidden. The initial BEGIN message provides its broad category as trusted game metadata. Identify the subject using as few counted questions as possible. ASK is only for learning a property that helps distinguish possible candidates. Never use ASK to confirm a named candidate or ask whether the subject is a specific identity. When you are ready to name a candidate, use GUESS immediately. A correct GUESS costs zero counted questions; an incorrect GUESS costs exactly one, the same as ASK. A GUESS must provide both a name and a short identifying description. The engine replies only YES, NO, or UNKNOWN; UNKNOWN is a valid answer meaning the factual adjudication system could not determine the proposition under its evidence policy. Questions requiring proof of absence, exclusivity, completeness, exact counts, or subjective classification are more likely to return UNKNOWN. Prefer direct, positively verifiable properties when possible. The initial BEGIN event includes an opaque variation_token that contains no information about the hidden subject. Do not interpret, repeat, mention, or derive meaning from it. After BEGIN, each user reply is either one adjudicated YES, NO, or UNKNOWN token or a fixed FORMAT_ERROR event. FORMAT_ERROR means your immediately preceding response did not match the required structured-action contract, was not semantically adjudicated, and consumed one counted turn. Use the formats in that event and try again. Never infer that the attempted question or guess was right or wrong. At most 50 questions or rejected guesses are counted. After that limit you receive one final guess-only opportunity. Format errors also consume counted turns. The provider wire response is an object with exactly one `result` action. On the final opportunity ASK is forbidden. Return only the required structured response. Do not include analysis, hidden reasoning, or additional fields.
Round 1
Round 1
Did not identify Albert Einstein after 50 counted questions.
Back to all Albert Einstein rounds- Questions
- 50 Scored as 51
- Outcome
- Question limit reached
- Format errors
- No errors
- Duration
- 4m 51s
- Round cost
- $0.1552 All 51 turns
Transcript
Questions and answers.
Turns are shown in the order they happened. Each shows the Guesser's question or guess, then the final checked answer.
Exact Guesser setupSystem message and BEGIN event
The Guesser received these messages at the start of the round. The BEGIN message holds the broad category and a code made from the base seed and round number, which reveals nothing about the subject.
{"category":"person","event":"BEGIN","variation_token":"EAQCORIU"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
Is the person male?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person male?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
The German-born American physicist... He is best known for his theory of relativity.Open notablebiographies.com (opens in a new tab)
Is the person primarily known for work in entertainment?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person primarily known for work in entertainment?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Einstein developed a theory of special and general relativity... He is also known for his explanation of the photoelectric effect.Open britannica.com (opens in a new tab)
The German-born American physicist... is best known for his theory of relativity.Open notablebiographies.com (opens in a new tab)
Is the person a historical figure?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the person a historical figure?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Einstein (1879 – 1955) was a theoretical physicist and major figure in history.Open historic-figures.com (opens in a new tab)
Did the person hold a high-ranking political office?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person hold a high-ranking political office?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Einstein ... gave his regretful no. The next day he wrote to Eban that he was deeply touched by the Israeli offer, but never undertook functions he could not fill to his satisfaction.Open content.time.com (opens in a new tab)
He had no interest in leaving the United States, becoming an Israeli citizen and serving in a political capacity.Open history.com (opens in a new tab)
Was the person known for achievements in science or invention?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person known for achievements in science or invention?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Einstein was a German-born theoretical physicist, widely acknowledged to be one of the greatest physicists of all time.Open amacad.org (opens in a new tab)
Did the person invent or develop something related to electricity or electronics?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person invent or develop something related to electricity or electronics?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
This became known as the photoelectric effect, and it would be understood in 1905 by a young scientist named Albert Einstein.Open physics.aps.org (opens in a new tab)
Einstein's explanation of the photoelectric effect assumes that the photons of light transfer their energy to the electrons in the metal target.Open educationalgames.nobelprize.org (opens in a new tab)
Thomas Edison
Inventor of the light bulb and other electrical devices
Validator rationale The proposal identifies Thomas Edison, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Inventor of the light bulb and other electrical devices","name":"Thomas Edison","question":null}}Was the person Nikola Tesla?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person Nikola Tesla?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Einstein ... German-born physicist who developed the special and general theories of relativity.Open britannica.com (opens in a new tab)
Nikola Tesla was an eccentric genius...Open britannica.com (opens in a new tab)
Did the person work on the development of telecommunications or radio communication?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person work on the development of telecommunications or radio communication?"}}Did the person hold a university professorship or have a significant academic career?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person hold a university professorship or have a significant academic career?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
He was an associate professor at the University of Zurich from 1909, a professor at the Karl-Ferdinand University in Prague from 1911 and taught at ETH Zurich as a professor of theoretical physics from 1912 to 1914.Open library.ethz.ch (opens in a new tab)
In 1909 the University of Zurich created an associate professorship in theoretical physics for him. This was Einstein’s first academic position; he left it in 1911 for a professorship in Prague.Open uzh.ch (opens in a new tab)
André-Marie Ampère
Physicist who contributed significantly to the study of electricity
Validator rationale The proposal identifies André-Marie Ampère, whereas the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Physicist who contributed significantly to the study of electricity","name":"André-Marie Ampère","question":null}}Was the person involved in the discovery or formulation of fundamental principles related to electricity?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person involved in the discovery or formulation of fundamental principles related to electricity?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
This concept was crucial in explaining the photoelectric effect, where light striking a metal surface causes the emission of electrons.Open britannica.com (opens in a new tab)
In March 1905, Einstein ... published a paper explaining the photoelectric effect.Open physics.aps.org (opens in a new tab)
Alessandro Volta
Italian physicist known for inventing the first electrical battery
Validator rationale The proposal identifies Alessandro Volta, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Italian physicist known for inventing the first electrical battery","name":"Alessandro Volta","question":null}}Did the person's work significantly influence the development of electrical systems or technology beyond their initial discovery or invention?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Did the person's work significantly influence the development of electrical systems or technology beyond their initial discovery or invention?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Einstein was able to explain the photoelectric effect... further developments in photovoltaics laid the foundations for modern solar energy research.Open environmentandsociety.org (opens in a new tab)
Einstein's theory of the photoelectric effect... makes it possible for today's solar panels to work.Open connect4climate.org (opens in a new tab)
Michael Faraday
English chemist and physicist who discovered electromagnetic induction
Validator rationale The proposal identifies Michael Faraday, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"English chemist and physicist who discovered electromagnetic induction","name":"Michael Faraday","question":null}}Was the person's work primarily theoretical, focusing on the underlying principles of electricity rather than practical applications or inventions?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Was the person's work primarily theoretical, focusing on the underlying principles of electricity rather than practical applications or inventions?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Albert Einstein (1879-1955) was a German-born theoretical physicist, best known for developing the theory of relativity and important contributions to quantum mechanics.Open archives.gov (opens in a new tab)
Albert Einstein was a theoretical physicist... He developed the general theory of relativity... [and] received the Nobel Prize in Physics... for... the photoelectric effect.Open alberteinstein.com (opens in a new tab)
James Clerk Maxwell
Scottish physicist known for formulating the classical theory of electromagnetic radiation
Validator rationale The proposal identifies James Clerk Maxwell, whereas the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Scottish physicist known for formulating the classical theory of electromagnetic radiation","name":"James Clerk Maxwell","question":null}}Georg Ohm
German physicist known for Ohm's law
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Georg Ohm, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist known for Ohm's law","name":"Georg Ohm","question":null}}Heinrich Hertz
German physicist who demonstrated the existence of electromagnetic waves
Validator rationale The trusted subject is Albert Einstein, while the proposed identity is Heinrich Hertz, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist who demonstrated the existence of electromagnetic waves","name":"Heinrich Hertz","question":null}}Charles Coulomb
French physicist known for Coulomb's law describing electrostatic interaction
Validator rationale The proposal identifies Charles Coulomb, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French physicist known for Coulomb's law describing electrostatic interaction","name":"Charles Coulomb","question":null}}Benjamin Franklin
American polymath and scientist known for his experiments with electricity
Validator rationale The proposal identifies Benjamin Franklin, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"American polymath and scientist known for his experiments with electricity","name":"Benjamin Franklin","question":null}}Hans Christian Ørsted
Danish physicist and chemist who discovered the relationship between electricity and magnetism
Validator rationale The proposal identifies Hans Christian Ørsted, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Danish physicist and chemist who discovered the relationship between electricity and magnetism","name":"Hans Christian Ørsted","question":null}}Alessandro Volta
Italian physicist known for his work on electricity
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Alessandro Volta, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Italian physicist known for his work on electricity","name":"Alessandro Volta","question":null}}Luigi Galvani
Italian physician and physicist known for his work on bioelectricity
Validator rationale The trusted subject is Albert Einstein, while the proposed identity is Luigi Galvani, a different person.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Italian physician and physicist known for his work on bioelectricity","name":"Luigi Galvani","question":null}}Charles-Augustin de Coulomb
French military engineer and physicist known for his work on electricity and magnetism
Validator rationale The trusted subject is Albert Einstein, while the proposed identity is Charles-Augustin de Coulomb, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French military engineer and physicist known for his work on electricity and magnetism","name":"Charles-Augustin de Coulomb","question":null}}Heinrich Hertz
German physicist who demonstrated the existence of electromagnetic waves
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Heinrich Hertz, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist who demonstrated the existence of electromagnetic waves","name":"Heinrich Hertz","question":null}}Michael Faraday
English chemist and physicist known for discovering electromagnetic induction
Validator rationale The trusted subject is Albert Einstein, while the proposed identity is Michael Faraday, a different person.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"English chemist and physicist known for discovering electromagnetic induction","name":"Michael Faraday","question":null}}Georg Simon Ohm
German physicist known for his work on electrical resistance
Validator rationale The proposal names Georg Simon Ohm, a different physicist from the trusted subject Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist known for his work on electrical resistance","name":"Georg Simon Ohm","question":null}}Joseph Henry
American scientist who discovered electromagnetic induction independently of Michael Faraday
Validator rationale The trusted subject is Albert Einstein, while the proposed identity is Joseph Henry, a different scientist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"American scientist who discovered electromagnetic induction independently of Michael Faraday","name":"Joseph Henry","question":null}}André-Marie Ampère
French physicist who contributed significantly to the understanding of electricity and magnetism
Validator rationale The proposal identifies André-Marie Ampère, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French physicist who contributed significantly to the understanding of electricity and magnetism","name":"André-Marie Ampère","question":null}}Benjamin Franklin
American polymath and statesman known for his experiments with electricity
Validator rationale The proposal identifies Benjamin Franklin, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"American polymath and statesman known for his experiments with electricity","name":"Benjamin Franklin","question":null}}Joseph Henry
American scientist known for work on electromagnetic induction
Validator rationale The proposal identifies Joseph Henry, an American scientist, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"American scientist known for work on electromagnetic induction","name":"Joseph Henry","question":null}}Michael Faraday
English chemist and physicist known for discovering electromagnetic induction
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Michael Faraday.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"English chemist and physicist known for discovering electromagnetic induction","name":"Michael Faraday","question":null}}Heinrich Hertz
German physicist who demonstrated the existence of electromagnetic waves
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Heinrich Hertz, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist who demonstrated the existence of electromagnetic waves","name":"Heinrich Hertz","question":null}}James Clerk Maxwell
Scottish physicist known for formulating the classical theory of electromagnetic radiation
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies James Clerk Maxwell, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Scottish physicist known for formulating the classical theory of electromagnetic radiation","name":"James Clerk Maxwell","question":null}}Georg Simon Ohm
German physicist known for Ohm's law
Validator rationale The proposal identifies Georg Simon Ohm, whereas the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist known for Ohm's law","name":"Georg Simon Ohm","question":null}}Hans Christian Ørsted
Danish physicist and chemist known for discovering the relationship between electricity and magnetism
Validator rationale The proposal identifies Hans Christian Ørsted, whereas the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Danish physicist and chemist known for discovering the relationship between electricity and magnetism","name":"Hans Christian Ørsted","question":null}}Alessandro Volta
Italian physicist known for the invention of the voltaic pile
Validator rationale The proposal identifies Alessandro Volta, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Italian physicist known for the invention of the voltaic pile","name":"Alessandro Volta","question":null}}Luigi Galvani
Italian physician and physicist known for pioneering bioelectricity
Validator rationale The proposal identifies Luigi Galvani, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Italian physician and physicist known for pioneering bioelectricity","name":"Luigi Galvani","question":null}}Michael Faraday
English chemist and physicist known for discovering electromagnetic induction
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Michael Faraday.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"English chemist and physicist known for discovering electromagnetic induction","name":"Michael Faraday","question":null}}Joseph Henry
American scientist known for work on electromagnetic induction
Validator rationale The proposal identifies Joseph Henry, an American scientist, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"American scientist known for work on electromagnetic induction","name":"Joseph Henry","question":null}}Nikola Tesla
Serbian-American inventor and electrical engineer known for contributions to the development of electrical power systems
Validator rationale The trusted subject is Albert Einstein, while the proposed identity is Nikola Tesla, a different person.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Serbian-American inventor and electrical engineer known for contributions to the development of electrical power systems","name":"Nikola Tesla","question":null}}James Clerk Maxwell
Scottish physicist known for formulating the classical theory of electromagnetic radiation
Validator rationale The proposal identifies James Clerk Maxwell, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Scottish physicist known for formulating the classical theory of electromagnetic radiation","name":"James Clerk Maxwell","question":null}}Michael Faraday
English chemist and physicist known for discovering electromagnetic induction
Validator rationale The proposal identifies Michael Faraday, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"English chemist and physicist known for discovering electromagnetic induction","name":"Michael Faraday","question":null}}Heinrich Hertz
German physicist who demonstrated the existence of electromagnetic waves
Validator rationale The proposal identifies Heinrich Hertz, whereas the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist who demonstrated the existence of electromagnetic waves","name":"Heinrich Hertz","question":null}}Georg Simon Ohm
German physicist known for Ohm's law
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Georg Simon Ohm, a different physicist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"German physicist known for Ohm's law","name":"Georg Simon Ohm","question":null}}André-Marie Ampère
French physicist who significantly contributed to the study of electricity and magnetism
Validator rationale The proposal identifies André-Marie Ampère, a different physicist from the trusted subject, Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"French physicist who significantly contributed to the study of electricity and magnetism","name":"André-Marie Ampère","question":null}}Hans Christian Ørsted
Danish physicist and chemist known for discovering the relationship between electricity and magnetism
Validator rationale The proposal identifies Hans Christian Ørsted, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Danish physicist and chemist known for discovering the relationship between electricity and magnetism","name":"Hans Christian Ørsted","question":null}}Alessandro Volta
Italian physicist known for the invention of the voltaic pile
Validator rationale The proposal identifies Alessandro Volta, while the trusted subject is Albert Einstein.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Italian physicist known for the invention of the voltaic pile","name":"Alessandro Volta","question":null}}Joseph Henry
American scientist known for his work on electromagnetic induction
Validator rationale The trusted subject is Albert Einstein, while the proposed identity is Joseph Henry, a different scientist.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"American scientist known for his work on electromagnetic induction","name":"Joseph Henry","question":null}}Michael Faraday
English chemist and physicist known for discovering electromagnetic induction
Validator rationale The trusted subject is Albert Einstein, while the proposal identifies Michael Faraday.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"English chemist and physicist known for discovering electromagnetic induction","name":"Michael Faraday","question":null}}